DOE publishes a Caliper report and subjective study on LED PAR38 lamps

The US Department of Energy concluded that all 38 models of PAR38 lamps tested surpass halogen lamps in terms of energy efficiency. Subjective testing of some models by IES members determined that single emitters performed best.

via LEDs Magazine Industry News http://ledsmagazine.com/news/10/11/16

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